Searchable abstracts of presentations at key conferences in endocrinology

ea0063oc12.5 | Endocrine Connections 2 | ECE2019

Sexual desire in transgender persons in relation with gender affirming hormone treatment: Results from ENIGI, a large multicenter prospective cohort study in transgender people

Defreyne Justine , Kreukels Baudewijntje , T'Sjoen Guyt , Heijer Martin Den , Heylens Gunter , Elaut Els

Background: The effect of testosterone on sexual arousal has been described in testosterone withdrawal and re-adminstration studies in birth-assigned males. In birth-assigned females, the relationship between sex steroids and sexual arousal is complex. Several steps in the transitioning process may affect sexual desire: hormone therapy (HT) and gender affirming surgery. HT in transgender men (TM) generally leads to increased sexual desire, masturbation frequency, sexual fantas...

ea0041ep958 | Steroid metabolism + action | ECE2016

Resting state functional connectivity is affected by testosterone treatment in female-to-male transgender persons

Nota Nienke , Burke Sarah , den Heijer Martin , Soleman Remi , Lambalk Cornelis , Veltman Dick , Cohen-Kettenis Peggy , Kreukels Baudewijntje

Background: Several resting state networks have been described in literature. Today, it is still unclear whether these networks are stable or can be influenced by sex hormones. Transgender persons offer a unique opportunity to study these hormonal influences.Objective: To examine the effects of cross-sex hormone treatment in transgender persons on two resting state networks involved in cognition and emotion, the default mode network and executive network...

ea0056p667 | Neuroendocrinology | ECE2018

Does gender affirming hormone therapy affect anger proneness in transgender persons?

Defreyne Justine , Elaut Els , Kreukels Baudewijntje , Heylens Gunter , Schreiner Thomas , Fisher Alessandra Daphne , Heijer Martin Den , T'Sjoen Guy

Introduction: Anger is an emotional state of feelings varying from mild irritation to intense rage, whereas aggression implies externalizing angry emotions through destructive/ punitive behavior towards other persons/objects. Although research on the relationship between testosterone and aggression is inconclusive, the WPATH SOC 7 guidelines have warned for an increase in aggression in transgender men (TM) taking testosterone treatment.Aims:<p class=...

ea0056p981 | Steroid metabolism + action | ECE2018

Facial feminization/masculinization: the effect of hormone treatment in transpersons

Tebbens Marieke , Nota Nienke , Liberton Niels , Meijer Brigitte , Kreukels Baudewijntje , Forouzanfar Tim , Verdaasdonk Ruud , den Heijer Martin

Background: Facial feminization or masculinization is particularly important in transpersons, both for self-image and social interaction. Females tend to have a smaller, rounder face, with more prominent cheeks and males tend to have a larger, more square face with frontal bossing. It is unknown whether cross-sex hormones can change these features. However, transgenders themselves often report facial changes due to hormone treatment. Therefore we aim to objectify if hormone tr...